26 somewhat greater in the expused group in 1964 than in the unexposed comparison popuiation. These abnormalities consist of polychromatic sheen, lenticular opacities of all degrees, and cataracts. The polychromatic sheen was noted as the earliest lens change and varied from a few fine granules in the earlier cases to large granular plaques in the more advanced cases. These plaques were situated on the pusterior lens capsule in the zene of specular reflection. The ecarltest cases showed yeilowish granules which tn some cases appeared slightly darker with a “beaten bras” color. As the granules coalesce into a plaque, greenish and bluish hues appear - hence the name pulychromatic sheen. ee Whether the polychromatic shecn seen following irradiation has unique and specific characteristics is still a debatable question. Some inves- ligators contend that umilar appearing changes can be detected in patients with retinitis pig- mentosa and the early stages of cataracts which might be a complication of endogenous ocular ur systemic disease ur intoxication, Such polychromatic sheens were seenin 21's of the unirradiated Roneclap group and 26.5" of the exposed group. Table 17 Resicual “Beta Burns” Suibgect No Age 2 (2 Sex M_ incidence of lenticular opacities was also slightly greater in the exposed eruup (19%) than in the un exposed group (12°). Only one child (an &-year-old female) com- plained of defective meht viston. This was thought to be due to vitamin A dehcienes, since there were no pathological changes in the fundus of either eve. Several vears ago E2 children were encountered who had ereat dithculty in seeing at naught. Vhes childres, responded promptly with vitamin A treatment and dietam changes. Only two cases were noted with corneal pigmenlation, previoush seen in three cases (14621) This pigmentation was characterized by a fine, dark. linear streak ol prement tying clase to or on Bowman’s membrane inthe hornvental axis between the limbus and pupillary edge [tts believed that these changes may have been induced from beta radiation contaminating maretns of the evelids at the ame of the accident. There were several findings which mavybe residual to the poltomveditis epidemic of 1965: twa Roughenag aad pegment vanairon an from of neck. Several pigqrmecnied macules ACr .* Perianal deprgmentavern. 3 LE M tt @@ MM Mantied pigmentation both auillac. Pigmented area behund ieft car. Pigment changes ieft ACF. dorsum fewe right tor: pigmented orvi axils 17 13.0 FF Scanning and pementatnun iett ACF a i7 M Piqgarnerd patch back of neck. ny 14 M 24060 3) OF Shige prqrment vanation on front of 4 55 F Slight roughe:.ing aad pigmerntaian 9 45 F Slight reughening and pegmeentation back of neck; pagent vanatuons and dight hvperpgmentation domnum nit foot. 49 3% F 54 i M 99 #4 F 63 46 Fo tt 40 Fo This difference is thought to be tou small to umpli- vate irradiation expasure with any degree of certainty, particularly in view of the slightly greater number of older peupie in the expused group. The Data Pigmented max ules icft asuilla. from of neck and chen. Depagmenecd spots shah pene. eeck: several pagmented macuies dorvem bets fas. back af sect. Mules on from of arck. Numerous pemedued macules buth ades of neck and 3 few on arms and ACF. Mottled piementatwn and depe- mentation on front of neck. Mottled pegmentation and depie- mentaion on back of neck. Slaghe rugometsand pugme nted ndges on back ot seck. Mode back of neck. sight pagment vanateon and a few. macvles [fount of neck. 43 Ul F Piement vananon and rovuehenine front of acck. fF 4 FO Depremented scars dorsum left foot 4 r Fo Sheht premented areca donum neht frst tor “# ™ 44 Fo Numerous pedunculated modes an ades and front of neck Mo Pigmented and depremenied scar postenor surlace left car *ACF =antecbstal bum. Figure 10. Re pagment zberra tt Bene Marrew Es